20: the figure is a net of a rectangular prism with a length of 14 yards, a width of 12 yards, and a height of 4 yards.
a- 180 square yards
b- 672 square yards
c- 600 square yards
d- 544 square yards

21: a cylindrical water tower is 24 feet high and has a diameter of 20 feet. approximately how many cubic feet of water could the tower hold?
a- 2,400 cubic feet
b- 7,500 cubic feet
c- 9,600cubic feet
d- 30,200 cubic feet

answer: 1 2 3 6

step-by-step explanation:

1x6=6 2x3=6

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

160

step-by-step explanation:

idk

i hope i

idc

step-by-step explanation:

idk